<template>
  <div class="category">
    <Breadcrumb></Breadcrumb>
    <div class="wrapper">
      <div class="title">产品类目管理</div>
      <div class="tree">
        <!-- 一级按钮 -->
        <el-button  type="warning" style="margin-bottom:20px;"  @click="addCategory">新增一级导航类目</el-button>
        <!-- tree内容结构 -->
        <el-tree
      :data="data"
      show-checkbox
      node-key="id"
      default-expand-all
      :expand-on-click-node="false"
      :render-content="renderContent"
      :props="defaultProps">
    </el-tree>
      </div>

    </div>
    <!-- 弹框 -->
    <Dialog :info="info" ref="child" :type="type" @updateViews="itemCategory"></Dialog>
  </div>
</template>

<script>
import Dialog from './Dialog.vue'
 export default {
    components: {
    Dialog
  },
    data() {
      return {
        info:"标题",
        type:1,
        data:[{
        id: 1,
        name: '一级 1',
        children: [{
          id: 4,
          name: '二级 1-1',
          children: [{
            id: 9,
            name: '三级 1-1-1'
          }],

        }]
      }, {
        id: 2,
        name: '一级 2',
        
      }],
     defaultProps: {
        label: 'name'
      }
       
      }
    },
    created() {
      this.itemCategory()
    },
    methods: {
      //新增一级导航
      addCategory(){
          this.$refs.child.dialogVisible = true;
      this.info = {
        title: `新增一级分类`,
      };
      this.type = 3;
      this.$refs.child.input = '';
      },
      append(data) {
       this.$refs.child.dialogVisible = true;
       this.info = {
        title: `新增【${data.name}】子级分类`,
        cid: data.cid
      };
           this.type=1;
            this.$refs.child.input =''
      },

      remove(node, data) {
        this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        //执行删除接口-------------------------
        this.$api.deleteContentCategoryById({ id: data.id })
          .then(res => {
            console.log('-删除---', res.data);
            if (res.data.status == 200) {
              this.$message({
                message: '恭喜你，删除成功',
                type: 'success'
              });
              this.itemCategory();
            }
          })
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        });
      });
      },
      update(node,data){
        this.$refs.child.dialogVisible = true;
        this.info = {
        title: `修改【${data.name}】名称`,
        id: data.id
      };
           this.type=2;
           this.$refs.child.input = data.name
      },

      renderContent(h, { node, data, store }) {
        console.log('render--',node,data);
        return (
          <span class="custom-tree-node">
           <span class='name'>{node.label}</span>
           {
            node.level == 1 ? <span>
              <el-button class='mini' on-click={() => this.append(data)} icon="el-icon-plus">新增</el-button>
              <el-button class='mini' on-click={() => this.update(node, data)} icon="el-icon-edit">修改</el-button>
              <el-button class='mini' type="danger" on-click={() => this.remove(node, data)} icon="el-icon-delete">删除</el-button>
            </span> : <span>
              <el-button class='mini' on-click={() => this.update(node, data)} icon="el-icon-edit">修改</el-button>
              <el-button class='mini' type="danger" on-click={() => this.remove(node, data)} icon="el-icon-delete">删除</el-button>
            </span>
          }
          </span>);
      },
      //请求tree数据
      async itemCategory(){
        let res =await this.$api.itemCategory()
        console.log('res--data',res.data.result);
        let data = res.data.result;
        //获取一级目录
         //获取一级目录
      let oneArr = [], otherArr = [];
      data.forEach(ele => {
        if (ele.type == 1) {
          ele.children = []
          oneArr.push(ele)
        } else {
          otherArr.push(ele)
        }
      })
        //继续遍历数组--获取数据结构---------
      oneArr.forEach(item => {
        //item.cid  一级信息标识
        otherArr.forEach(ele => {
          if (ele.type === item.cid) {
            item.children.push(ele)
          }
        })

      })
      this.data = oneArr;
      }
    }
  };
</script>

<style lang="less" scoped>
.custom-tree-node {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  padding-right: 8px;
}

.category {
  margin: 10px;
}

.wrapper {
  padding: 10px;
  margin-top: 10px;
  background: #fff;

  .title {
    background: #f6f6f6;
    height: 50px;
    line-height: 50px;
    font-weight: bold;
    padding-left: 10px;
  }

  .tree {
    margin: 10px;


    /deep/ .mini {
      padding: 4px 10px;
      font-size: 14px;
    }

    /deep/ .el-tree-node__content {
      margin-bottom: 10px;
    }
  }

  /deep/ .name {
    width: 300px;
    display: inline-block;
  }


}
</style>